Ventilation-terminal.



PATENTED SEPT. 4, 1906.

G.P.GOU LD. VENTILATION TERMINAL.

APPLICATION FILED APR.13,1905. I

v u wm UNITED STATES PATENT orrron CHARLES P. GOULD, OF EAST BRAINTREE,MASSACHUSETTS, ASSIGNOR TO FORE RIVER SHIP BUILDING COMPANY, OF QUINCY,MASSACHU- SETTS, A CORPORATION OF MASSACHUSETTS.

VENTILATION-TERMINAL.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed April 13, 1905. Serial No. 255.325.

To all wltom, it may concern.-

Be it known that I, CHARLES P. GOULD, a citizen of the United States,residing at East Braintree, in the county of Norfolk and State ofMassachusetts, have invented new and useful Improvements inVentilationTerminals, of which the following is a specification.

This invention relates to an improved conical sectional pipe in whichthe sections are adapted to be rotatably adjusted one upon the other, sothat by placing said sections in the correct positions to each othersaid pipe may be formed as a frustum of a cone, or said sections may beso arranged that said pipes will form as a wholeja curved structureknown as an elbow or as a cowl in the respec-,

tive classes to which this invention pertains.

The object of the invention is to provide a device of the characterdescribed, the same.

being particularly adapted to the construction of ventilation terminalsor outlets for ventilation-pipes, such as are used on steamers, vessels,and the like, and to this end it is particularly desirable that theoutlet-terminal of a ventilation-pipe should gradually increase indiameter from the point of beginning thereofthat is, at the upper end ofthe ventilation-pipe proper to the outletorifice thereof; second, saidventilation-terminal should be capable of adjustment so that it may beplaced with the outlet-orifice thereof in a horizontal or verticalposition or at any desired angle intermediate between said horizontaland vertical positions; third, said elbow or terminal in all its variedforms and positions should have a symmetrical shape in order to providefor the proper distribution of air at the delivery end thereof, and thusprevent whistling under pressure; fourth, the different sections of saidterminal must accurately fit each other in the different positions inwhich they are placed.

It is also the object of this invention to provide a cap for theoutlet-orifice of the ventilation-terminal to prevent extraneousarticles from entering said terminal, which cap may be easily attachedto or detached from the outlet end of said terminal, and, further, it isthe object of this invention to provide a damper which, in combinationwith said ventilation-terminal, regulates the flow of air through theventilation-pipe and which may be locked in any desired position.

The invention consists of a pipe formed of a plurality of conicalsections, the opposite ends of said conical sections lying in convergingplanes and the adjacent edges of said sections rotatably mounted oneupon the other, so that said pipe may be by the relative adjustment ofsaid sections one to the other formed as a frustum of cone or as anelbow and with its outlet-orifice in a substantially horizontal positionor in a vertical position or at any desired angle between a horizontaland a vertical position.

The invention further consists in the combination, with a pipe orventilation-terminal, of a damper adapted to be locked in differentpositions.

The invention again consists in a ventilation-terminal having a capdetachably fastened to the outlet end thereof in the manner hereinafterset forth, and finally the invention consists in the combination andarrangement of parts set forth in the following specification andparticularly pointed out in the claim thereof.

Referring to the drawings, Figure 1 is a side elevation, partly brokenaway and shown in section, of a form of my invention as adapted toventilation-terminals. Fig. 2 is a front elevation of the same as viewedfrom the right of Fig. 1, with the damper-lock cap shown in section.Fig. 3 is a side elevation of my improved ventilation-terminal,illustrating the different conical sections in the correct position withrelation to each other to form a cone. Fig. 4 is an enlarged section,partly in elevation, taken on line 4 4 of Fig. 1, illustrating themanner of attaching the cap to the ventilation-terminal. Fig. 5 is anenlarged section taken on line '5 5 of Fig. 1. Fig. 6 is an enlargedsection taken on line 6 6 of Fig. 3. Fig. 7 is a section taken on line 77 of Fig. 5.

Like numerals refer to like parts throughout the several views of thedrawings.

In the drawings, 10 is the ventilation-terminal as a whole, the sameconsisting of a plurality of conical sections 11, 12, 13, 14, 15, and16. The opposite ends of said conical sections or cone-frustums lie intwo converging planes, and each of said conical frustums is rotatablyconnected to the frustums adj acent thereto, the edges being formed inhemispherical shape to fit one upon the other, as

illustrated in Fig. 6, in which the edge 17 of j jarred off rim 19. iferentially beyond opposite sides of the slots the section 12 is formedin hemispherical shape to encircle the edge 18 of the section 13, sothat the edges of each of said frustums form a closely-fitting jointwith the edge of ring the conefrustum adjacent thereto, and each of saidcone-frustums may be rotated upon the adjacent conefrustum.

The section 16 is provided with a rim 19, securely fastened thereto bysoldering, and to said rim are fastened two radial pins 20 20 upondiametrically opposite sides of said rim. The cap 21 consists of a ring22,with a screen 23 extending thereacross and fastened thereto. The ring22 is provided with an annular recess 24, into which the rim 19 fits.Said ring is also provided with two annular grooves 25 25, which extendpartly therearound and into which the outer ends of the pins 20 projectwhen the cap is in position upon the outer end of the terminal section16 and locked thereto, as hereinafter described. Slots 26 open outwardlyfrom the annular grooves 25 in the ring 22, said grooves extendingbeyond said slots upon opposite sides thereof, respectively.

In order to attach the cap 21 to the terminal 10, the same is placed inthe position illustrated in Fig. 2, with the pins 20 inalinement withthe lateral slots 26, formed in the ring 22, and said cap 21 is thenpushed onto the rim 19 or toward the left, Fig. 1, and into the positionillustrated in Fig. 1. Said cap is then rotated toward the right or leftand the pins 20 thus pass into the annular grooves 25, and thus the capis locked to the rim 19 and to the section 16. By reversing the rotationhereinbefore described of the cap 21 until the pins 20 come in lineagain with the lateral slots 26 said cap may be removed by drawing thesame off of the rim 19 or toward the right, Fig. 1. It will be seen andunderstood that by continuin the grooves 25 circumferentially beyond theslots 26 upon. opposite sides thereof the accidental disconnection ofthe ring 22 from the rim 19 is prevented. This accidental disconnectionwould be very liable to occur if the groove 25 terminated at one endthereof in line with the slots 26, for the reason that in changing therelative location of the different conical frustums to each other thering 22 is grasped by the operator and rotated, turning the conicalfrustums in the direction desired to change the angle of theventilation-terminal as a whole. Now if the groove 25 terminates inalinement with the lateral slots 26 it is evident that when the ring isrotated, as hereinbefore described, unless the operator remembers totake the precaution of rotating the ring in the opposite direction whenhe has finished adjusting the conical frustums the pins 20 will be leftin alinement with the slots 26 and therefore the ring 22 will be inposition to be accidentally the end. or the terminal or off of the Byextending the groove 25 circum- 26, respectively, this accidentaljarring of the from its place is prevented.

A cylindrical band 27 is fastened to the section 11, said bandconstituting the upper end of the ventilation-pipe proper, and a damper23 of the form known as a butterfly-damper, is rotatably supported insaid cylindrical band, the object of said damper being to regulate theflow of air through the ventilation-pipe and through the terminal. Saiddamper consists of a disk 29, provided with two studs 30 and 31,fastened thereto at diametrically opposite sides thereof. The

stud 31 is provided with a handle 32, by

means of which it may be rotated. The stud 30 is journaled to rotate inthe band 27, the stud 31 being journaled to rotate in a bearingsleeve33, fast to the band 27 and provided with V-shaped teeth 34 upon theouter end thereof, which mesh into similar teeth 35, formed upon theleft-hand face, Fig. 2, of a washer 36. The washer 36 has a square hole37 formed therein, and through this hole projects a rectangular portion38, formed upon the stud 31. The washer 36, it will be understood,rotates with the stud 3 1 and handle 32 and is slidable longitudinallythereof upon the rectangular portion 38 of said. stud, the teeth of saidwasher and bearing-sleeve being held in contact or in mesh with eachother by a spiral spring 39, one end of which bears against said. washerand the other against the end of a cap 40, which surrounds the spring 39and washer 36 and has screwthreaded engagement with the bearingsleeve33. v

While I have described my invention as particularly applicable to theterminal of a ventilating-pipe, it is evident that the same may be usedin connection with other kinds of pipes in which a conical end isdesired and in which said conical end may be changed in form from astraight conical frustum to an elbow, gradually increasing in diameterfrom one end to the other thereof.

The damper illustrated and described in the foregoing specification ismade the subject-matter of a separate application, Serial No. 225,326,filed April 13, 1905.

The operation of my invention hereinbefore specifically described is asfollows: Assuming the terminal to be in the position illustrated in Fig.1, in which the different conical. frustum-sections are arrangedrelatively to each other in such a position as to form an elbow, withthe outlet-orifice of said elbow in a substantially vertical plane, andthat it is desired to change said terminal to the form illustrated inFig. 3, in which said terminal consists of a cone, with the outlet endthereof substantially horizontal, each alternate section is given ahalf-rotation upon the section adjacent thereto. For instance, thesections 12, 14, and 16 are given a half-rotation upon the sections 11,13, and 15, respectively, thus changing the form of the terminal from anelbow (shown in Fig. 1) to a frustum of a cone. (Illustrated in Fig. 3.)The damper is operated by turning the handle 32 until the disk 29 standsat the-angle desired to allow the proper amount of air to pass throughthe ter minal, and during such movement of the handle the washer 36rotates therewith, the teeth 35 on the washer springing out of the teeth34 on the sleeve to allow said rotation and being forced back into meshwith each other when the proper position of the disk 29 is finallyobtained by the spring 39, thus locking the damper in the desiredosition against accidental displacement. T e manner of attaching anddetaching the cap 21 to and from, respectively, the rim 19 has been saidfrustums having inclined opposite ends and straight sides rotatablyconnected together about their longitudinal median axes and forming, asa whole, a terminal increasing in diameter throughout its length fromone end to the other thereof.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHARLES P. GOULD. Witnesses:

SAMUEL T. lVlACQUABRIE, LUCY 0. Hours

